[Python-Dev] Switch statement

Wed Jun 21 10:38:57 CEST 2006

On 2006年6月21日, Phillip J. Eby wrote:
> Well, EIBTI and all that:
>> switch x:
> case == 1: foo(x)
> case in S: bar(x)
>> It even lines up nicely. :)

Hmm, this is rather nice. I can imagine possible use cases for
 switch x:
 case > 3: foo(x)
 case is y: spam(x)
 case == z: eggs(x)
An interesting use case for which this offers no corresponding
syntax is
 case instanceof ClassA: ham(x)
which doesn't work because Python spells a type test as
isinstance(a, b) rather than with an operator. (I suppose
whether we want it to be an operator might be another
question to think about for Python 3000.)
-- ?!ng